Which of the following is a true statement about the first battle of bull run

It was the last major battle of the Civil War. It took place near the end of the Civil War. It was the first major battle of the Civil War.

Explanation:

First Manassas (the First Battle of Bull Run) was important because: it stripped both the northerners and southerners of their assumptions about an easy war.

explanation:

the addition to geographic boundaries that might have  kept the people of the huang river civilization from traveling to far distance region is that they had learned about the other river valley civilizations but feared contact would bring invasion.

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